# Molecular

> Molecular biology fundamentals

- Skill: `ffsshhttiikk/molecular` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ffsshhttiikk/molecular`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ffsshhttiikk/molecular/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: ffsshhttiikk (https://skillmd.com/u/ffsshhttiikk)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ffsshhttiikk/molecular

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## What I do

- Explain molecular processes in cells
- Describe nucleic acid structure and function
- Discuss protein synthesis and function
- Explain genetic information flow
- Connect genes to cellular function
- Apply molecular biology techniques

## When to use me

- When learning molecular biology basics
- When explaining cellular processes
- When studying genetic mechanisms
- When preparing educational content

## Key Concepts

### DNA Structure

- Double helix: Antiparallel strands
- Base pairing: A-T, G-C
- Sugar-phosphate backbone
- Major and minor grooves

### RNA Types

- **mRNA**: Messenger, template for protein
- **tRNA**: Transfer, brings amino acids
- **rRNA**: Ribosomal, catalytic core
- **miRNA**: Micro, gene silencing
- **snRNA**: Small nuclear, splicing

### Protein Structure

```python
# Protein structure levels
protein_structure = {
    'primary': 'Amino acid sequence',
    'secondary': 'Alpha helices, beta sheets',
    'tertiary': '3D folding',
    'quaternary': 'Multi-subunit complexes'
}

# Amino acid properties
amino_acid_groups = {
    'nonpolar': 'A, V, I, L, M, F, W, P',
    'polar': 'S, T, C, Y, N, Q',
    'charged_positive': 'K, R, H',
    'charged_negative': 'D, E'
}
```

### Genetic Code

- 64 codons: 61 sense + 3 stop
- Degenerate: Multiple codons per amino acid
- Universal (with exceptions)
- Start codon: AUG (Methionine)
- Stop codons: UAA, UAG, UGA